How To Compare Windows

Shopping for new windows for your commercial or residential property in Maryland, Virginia, or Washington DC and haven't a clue as to how to begin selecting the perfect product? Start by visiting the education section of The Window Man website. We'll teach you:

Glass Basics

Sound Abatement

The Greener Side of Things

What Makes a Great Window?

Window Facts

Window Materials

Window Terms

And if that isn't enough, stop by any of our three area showrooms. Our consultants are happy to discuss the details of your particular project.

Commercial Windows & Architectural Window Installation

Here at The Window Man we offer many commercial window solutions such as DeVAC by MonRay, H Windows, Optimum Windows, Gerkin, Universal, and Keystone.

Some of our local commercial projects include Some of our Commercial projects: (HOLC) Home Loan Building in Washington DC, National Research Council in Washington DC, various Interior Mounts in the (USDA) Department of Agriculture in Washington DC, (NIH) National Institutes of Health in Maryland, the Naval Academy's Ward Hall in Annapolis MD, the Seaford Middle School, the Middletown, Delaware Middle School, Seaford High School, the Crestwood Elementary School in Springfield, VA, the Seaford Central Elementary School, the Rock Hall Elementary School, the Blades Elementary School, the Department of State Training Facility in Arlington VA, the National Park Service Building in Harpers Ferry, WVA, the John Hopkins Applied Physics Lab, the Greenpeace HQ in Washington DC, the Stewart Building in Baltimore, MD, the Fred Douglas Elementary School, the Seaford West Elementary School, the Garrnet Elementary School in Kent Co. MD.

To find out how The Window Man can help you with your commercial project stop by any of our three Norther Virginia showrooms.

(703) 978-9888

Fairfax Windows
Fairfax, VA
3853-A Pickett Road
Fairfax, Virginia 22031
Mon - Fri: 9am to 5pm
Sat: 9am to 4pm

Alexandria Windows
Alexandria, VA
3000 Jefferson Davis Hwy.
Alexandria, Virginia 22305
Mon - Fri: 9am to 5pm
Sat: 9am to 4pm

Chantilly Windows
Chantilly, VA
14017 Lee Jackson Hwy.
Chantilly, Virginia 20151
Mon: 10am to 6pm
Tue - Fri: 12pm to 8pm
Sat: 9am to 4pm

Recent Projects By The Window Man

The Window Man has recently completed some impressive commercial and residential window projects, like:

Ward Hall at Annapolis Academy
Seaford Middle School
Good Shepard United Methodist Church
Sandalwood Court
Central Elementary School
King Street

To find out what we can do for your residential and commercial projects, stop by any of our three Northern Virginia showrooms.

DeVAC: For New Commercial Construction or Renovation

At The Window Man we carry a number of window lines perfect for commercial new construction or renovation projects.

For example, the DEVAC 600 Series high performance dual frame Thermo-Barrier aluminum windows have a wide airspace between interior and exterior glass panes to conserve energy and reduce outside noise penetration. The unique, non-structural DEVAC Thermo-Barrier provides the key to effective performance by meeting essential design criteria:

* Insulates interior frame and sash from costly thermal transfer and improves condensation resistance.
* Effectively seals against air and water leakage through barrier into wall structures.
* Allows freedom of expansion and contraction while keeping structural integrity between interlocking parts.
* Interlocks aluminum frame members so that forces generated by thermal movement and structural load will utilize the barrier material for it's greater compressive strength. A design principle proven by 30 years of service with no failure.
* Custom sized to 1/32 of an inch. Available as double-hung, horizontal slider, removable panel and fixed panel. Historical designs and special shapes are offered.


DeVAC's exclusive dual-pane/dual-barrier design provides the highest STC (Sound Transmission Class) available in fully operating windows. STC's from 37 to 56 are obtainable in standard DeVAC window products glazed with common monolithic glass.

Devac's Thermo-Barrier™ frame and wide, trapped air space glazing system are key elements to the 600 Series' outstanding acoustic performance...performance not obtainable with laminated or sealed insulating glass.

Sound transmission loss tests consistently show the DeVAC Acoustic Window system provides better STC ratings than the same thicknesses in other systems. There is no significant acoustic benefit from laminated glass in DeVAC Acoustic Windows, which means an economical installation that is not in conflict with life safety requirements. (Research tests also show a loss of acoustic performance when laminated glass is subjected to cool weather.)

With DeVAC, windows are not an acoustic "weak link" in exterior walls. In fact, selecting from many DeVAC product and glazing combinations to acoustically match the values of window and wall is the best way to assure that needed performance is provided without uneconomical over-specifying. Devac acoustic windows offer attractive, cost-effective sound control for new developments saturated by aircraft or freeway noise. The ease of maintenance, cleaning and operation, coupled with adaptable designs and accessories, also make DeVAC Acoustical Windows a top choice for retrofit at sites experiencing increasing disruption from outside noises intruding on the interior environment.

To learn more about the DeVAC 600 series, or Optimum or H-lines commercial products, stop by any of our three Northern Virginia showrooms today.

Windows For Commercial Properties

The Window Man works with many architects and contractors to provide quality commercial windows for new construction and renovation projects in the DC, Virginia, and Maryland metro area. Stop by one of our three Northern Virginia showrooms to find out how The Window Man can help with your next commercial project.

Low-E Glass & Energy Efficiency Windows

Low-E glass is glass with a special insulated glazing, usually on the interior face of the glass, that helps stop heat loss from your home. Many of these energy efficient windows are actually double-glazed windows with a high-transmission, low-E glass and argon gas fill. (Argon is an inert, non-toxic gas used to reduce heat transfer.)

For more information on energy efficient windows, stop by one of The Window Man's showrooms to discuss which is appropriate for your home or commercial property.

DeVac 600 Series Dual Frame Thermo-Barrier

The Window Man is pleased to offer representatives available for Commercial and Architectural appointments. Contact us, or stop by one of our three Northern Virginia Showrooms for more information.

One of our line of commercial windows, the DEVAC 600 series, is of particular interest.

The DEVAC 600 Series high performance dual frame Thermo-Barrier aluminum windows have a wide airspace between interior and exterior glass panes to conserve energy and reduce outside noise penetration. The unique, non-structural DEVAC Thermo-Barrier provides the key to effective performance by meeting essential design criteria:

• Insulates interior frame and sash from costly thermal transfer and improves condensation resistance.
• Effectively seals against air and water leakage through barrier into wall structures.
• Allows freedom of expansion and contraction while keeping structural integrity between interlocking parts.
• Interlocks aluminum frame members so that forces generated by thermal movement and structural load will utilize the barrier material for it's greater compressive strength. A design principle proven by 30 years of service with no failure.
• Custom sized to 1/32 of an inch. Available as double-hung, horizontal slider, removable panel and fixed panel. Historical designs and special shapes are offered.

New Expanded Showroom

Come in and explore The Window Man's new expanded showrooms in Northern Virginia.

• Peruse all types of window solutions--from vinyl to steel

• Choose from Northern Virginia's largest selection of quality brands

• Enjoy expert installation by our craftsmen

• View acoustical windows and doors

• We're a Virginia Class "A" contractor licensed for commercial & residential

• Enjoy a free consultation in your home or stop in our design center

Architects & Commercial Construction

If you're a general contractor or architect looking for quality windows for your clients' home renovation project or new construction, look no further than Northern Virginia's The Window Man. We'd be happy to meet with you and your firm to discuss which windows might best suit your clients' needs.